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首页> 外文期刊>Ocean & coastal management >Fishermen's perception of Neotropical otters (Lontra longicaudis) and their attacks on artisanal fixed fence traps: The case of caicara communities
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Fishermen's perception of Neotropical otters (Lontra longicaudis) and their attacks on artisanal fixed fence traps: The case of caicara communities

机译：渔民对新热带水獭（Lontra longicaudis）的感知及其对手工固定栅栏陷阱的袭击：caicara社区的案例

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摘要

In Brazil, fishermen and fish farmers have informally reported the problem of Neotropical otter {Lontra longicaudis) attacks on their gear and fish ponds. Information about these interactions can be obtained from traditional ecological knowledge. Given this context, the objective of this study was to verify the perception of 'caic,ara' fishermen of Neotropical otters and their attacks on fixed fence traps in the Cananeia and Comprida Islands (25°00'S, 47°55'W), in the southern part of Sao Paulo state. We conducted 31 interviews and applied 'participant observation' and 'informal conversation' techniques. The frequencies of answers to each question were compared using non-parametric statistical tests. In total, 27 (87.10%) of the fishermen reported currently using fixed fence traps. Twenty-nine (93.55%) confirmed that predation by Neotropical otters occurred involving their fixed fence traps. A total of 22 fishermen reported the extent of the damage, and many of them (45.45%) also reported that the amount of damage attributed to the otters is considered "small." Of the 29 (93.55%) fishermen who provided opinions about possible alternatives to reduce fixed fence trap predation, eight (27.59%) said that there are no alternatives, and 21 (72.41%) had different opinions, such as the use of a light fixture, nocturnal surveillance, the use of barbed wire on the fixed fence trap door and the use of scarecrows. Although there is a competitive relationship between 'caicara' fishermen and Neotropical otters involving the use of the same space and resources, it is not harmful in terms of the possible risks affecting the survival of this mustelid. This study describes for the first time the perception by fishermen of the 'caicara' communities in relation to Neotropical otters and their attacks on fixed fence traps. The information acquired from traditional ecological knowledge is an important tool in developing strategies for the management and conservation of otters.
机译：在巴西，渔民和养鱼者非正式地报告了新热带水獭（Lontra longicaudis）对其渔具和鱼塘的袭击问题。有关这些相互作用的信息可以从传统的生态知识中获得。在这种背景下，本研究的目的是验证新热带水獭的“ caic，ara”渔民的看法以及他们对卡纳尼亚和Comprida群岛（南纬25°00，南纬47°55'）固定栅栏陷阱的攻击，圣保罗州南部。我们进行了31次访谈，并应用了“参与者观察”和“非正式对话”技术。使用非参数统计检验比较了每个问题的答案频率。总共有27名（87.10％）渔民报告目前正在使用固定栅栏陷阱。二十九（93.55％）证实新热带水獭的捕食活动涉及其固定的栅栏陷阱。共有22位渔民报告了这种破坏的程度，其中许多人（45.45％）还报告说，将水獭造成的破坏程度视为“很小”。在29名（93.55％）渔民中，他们对减少固定栅栏捕食器的替代方法提出了意见，其中八人（27.59％）表示没有替代方法，而21名（72.41％）的渔民对此有不同的意见，例如使用灯夹具，夜间监控，固定栅栏陷阱门上的铁丝网使用和稻草人使用。尽管“ caicara”渔民和新热带水獭之间存在竞争关系，涉及使用相同的空间和资源，但就影响该芥末生存的潜在风险而言，这无害。这项研究首次描述了渔民对“ caicara”群落与新热带水獭及其对固定围栏陷阱的攻击的看法。从传统生态知识中获得的信息是制定水獭管理和保护战略的重要工具。

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  • 来源
    《Ocean & coastal management》 |2014年第5期|19-27|共9页
  • 作者

    Franciele Rezende de Castro; Suzana Stutz-Reis; Sarah Stutz Reis; Eduardo Nakano-Oliveira; Artur Andriolo;

  • 作者单位

    Departamento de Zoologia, Instituto de Ciencias Biologicas, Universidade Federal de Juiz de Fora, Minos Cerais, Brazil,Institute) de Pesquisas Cananeia, Cananeia, Sao Paulo, Brazil,Instituto Aqualie, Cabo Frio, Rio de Janeiro, Brazil;

    Departamento de Zoologia, Instituto de Ciencias Biologicas, Universidade Federal de Juiz de Fora, Minos Cerais, Brazil,Institute) de Pesquisas Cananeia, Cananeia, Sao Paulo, Brazil,Instituto Aqualie, Cabo Frio, Rio de Janeiro, Brazil;

    Departamento de Zoologia, Instituto de Ciencias Biologicas, Universidade Federal de Juiz de Fora, Minos Cerais, Brazil,Institute) de Pesquisas Cananeia, Cananeia, Sao Paulo, Brazil,Instituto Aqualie, Cabo Frio, Rio de Janeiro, Brazil;

    Institute) de Pesquisas Cananeia, Cananeia, Sao Paulo, Brazil;

    Departamento de Zoologia, Instituto de Ciencias Biologicas, Universidade Federal de Juiz de Fora, Minos Cerais, Brazil,Instituto Aqualie, Cabo Frio, Rio de Janeiro, Brazil;

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